Drier



Oct. 28 1924. J. JUDELSON DRIER Filed April 4, 192] 3 Sheets-Sheet 1mvmon Ju/ws Jude/$00 BY I mommy Oct. 28 1924.

.J. JUDELSON DRIER 3 Sheets-Sheet 5 Filed April 4, 1921 INVENTO R Jul/usJzlae/safl BY z 1:.- A/TTORINEY Patented Oct. 28, 1924.

UNITED STATES JULIUS JUDELSON, on NEW YORK, N, Y.

I I DRIER.

Application filed April 4, 1921. Serial! No. 458,314. I

To all whom it may concern:

Be it known that JULIUS JUDELSON, a citizen of the United States, andresident of the city of New York, in the county of Bronx and State ofNew York, has invented certain new and useful Improvements in Driers, ofwhich the following is a specification.

This invention relates to driers. One of the objects thereof is toprovide in a drier, a drying cabinet or chamber formed from a number ofunit sections easily disassembled for shipping and capable of beingquickly and accurately put together by unskilled labor.

Another object of this invention is the provision of a strong,efficient, drying cabinet made of sheet material, and the provision ofseparable walls and top members having strong tightly sealed jointstherebetween.

A still further object of this invention is the provision in a drier ofmeans for carrying a drying rack, which means may be telescoped out ofthe way during the drying operation, and which may readily be pulled outinto position for suitably supporting the rack in the loading andunloading position thereof.

Other objects of this invention will be in part obvious and in parthereinafter pointed out.

The invention accordingly consists in the features of construction,combinations of elements and arrangement. of parts which will beexemplified in the construction hereinafter described and of which thescope of invention will be indicated in the following claims.

In the accompanying drawings in which is shown one of various possibleillustrative embodiments of this invention.

Fig. 1 is a perspective view of the drying cabinet with the means forcarrying the drying rack pulled out, shown in dotted lines;

Fig. 2 is a partial top plan view and horizontal section of thedrier online 2-2 of Fig. 6 with the rack and the means for supporting the sameremoved;

Fig. 3 is an enlarged perspective sectional view of the joint betweenthe rear and the side walls; a

Fig. 4 is a similar view of part of the upper corner edges of the driercabinet, the

various parts forming the joint between the walls and the top beingseparated for-clearness' Fig. 5 is a perspective view of the means forholding the walls in place; and

Flg. 6 1s a partial front View and'verti'cal .section of a drierembodying this invention showing the drying rack and the frame guidetherefor in the closed or operative position, part of the centralportion between the top and bottom being removed.

In the illustrated embodiment of my invention, I provide a dryingcabinet in which the side walls 10, the rear walls 11 and the top 12 areeach made preferably of sheet material so arranged as to providesuitable air spaces in said walls. the sheets being somewhat differentin each of said members 10, 11 and 12, the description of one only willbe taken up at a time. The rear wall 11 is made preferably of twoindependent sheets 13 and 14 (see Fig. 2) having the air space 15between themand joined at the side edges thereof to form asubstantiallyrectangular prism which may be left open at the bottom'for the sake of Ieconomy, and which may be closed at the top by the means shownin Fig. 4as will be more fully described hereinafter. The type of joint used insecuring the edges of the sheets 13 and 14 together is clearly shown inFigs. 2 and 3 at 16 and may be described as an interlocking U joint.

For closing the top of the rear wall 11, and of the side Walls 10, (Fig.4) an outer angle-17 is suitably fastened to the outer face of one ofthe flanges 18 of the 2 bar 19 so as to form a recess 20 between thehorizontal faces of the angle 17 and the 2 bar 19 into which recess thetop 12 may be inserted. A like recess 2' is also formed between thevertical faces of the angle 17 and 2 bar 19 into which recess the upperends of the rear wall 11 and of the side walls 10 may be inserted.

The top 12 comprises the sheets 22 and 23 arranged with the space 24between them. '10) The side edges of said sheets are joined to Thearrangement of v gether by an interlocking U-joint as 25 similar to thejoint 16, while the end edges are joined by means of a double S-shapedmember 26 (Fig. 6) which serves to properly space the sheets 22, 23 andwhich is lapped over the edges of said sheets by means of a suitablejoint 27.

The sides 10 may be of various lengths, one intermediate section 28, andend sections 29 and 30 being illustrated (Fig. 2) though it is obviousthat the cabinet may be made of any desired greater length merely bylengthening the top, the trolley guides and the other members disposedlengthwise of the cabinet. The rear end section 29 comprises the sheets31 and 32 arranged with the air space 33 between them. For joining thesaid sheets together at their rear upright edges, the inner sheet 31 hasa U-shaped bend therein to provide a groove 35 into which the bent edges16 of the rear wall may be fitted, while the other sheet 32 is foldedover said bend as at 34. A similar joint is made at the inner edges ofeach of the end sections 29 and 30 of the side 10, and at both of theupright edges of the intermediate sections 28, whereby two thicknessesof material are provided at the edge of each section through whichsuitable bolts such as 36 may be passed for firmly securing saidsections together. The front end section 30 is constructed somewhatsimilarly to the section 29, the difference consisting in the fact thatthe Z-bar 37 which forms the door stop of the cabinet is held to thefront of said section 30 by the flap 38 which is folded over a flange ofsaid Z-bar and serves to hold the sheets comprising said section andsaid Z-bar together.

For holding the sides 10 together, and for maintaining the rear wall 11in the grooves 35, suitable means such as straps 39 are provided. Themain portions of said straps are arranged with the wide face thereofpreferably vertical, while the ends 40 are twisted at right angles sothat the wide faces thereof become horizontal, each of said portions 40terminating in a downwardly extending hook 41. On the inner faces of theside walls are attached the strap catches 42 suitably bent to receivethe hooks 41 of said straps 39.

A rack member comprising the door 43,

the end 44, and the cross bars 45 suitably connecting said door and saidend is suspended by the trolleys 46 and 47 from the trolley guides 48and 49. The guide 49 is adapted to slidably enter the guide 48 andcarries the frame 50 which is connected to a bar 49 and which isprovided with suitable floor castors 51 at the lower end thereof.

Said bar 49 is arranged to slide in the hollow guide 48 which issuitably supported longitudinally of the cabinet whereby the frame 50and the guides 49 and 49 connected thereto, may be moved longitudinallyrelatively to and independently of said rack arid said cabinet.

For supplying heat to the cabinet, a suitable heater 52 may be arrangedoutside of said cabinet, the heated air being conducted through asuitable chamber 53 and against suitable baflie plates 54 beforeescaping through the vent pipe 55.

For exhausting much of the moist air from the inside of the cabinetduring the drying operation, a suitable box 56 having openings 57 on oneside thereof is interposed between two sections of said vent pipe 55. Ahinged door 58 may be provided in the front of the cabinet for allowingaccess to the portion of the cabinet where is located the heatingchamber 53.

The operation of my device is as follows: The frame 50 is first pulledout from the inside of the cabinet, the rods 49 and 49 being withdrawnfrom the rods 48 and 48' respectively, the castors 51 rolling along thefloor, while said frame is being moved. The rack may now be readilywithdrawn from, the cabinet by pulling on the handle 59 whereby thetrolley wheels 60 and 61 roll on the guides 48,49 respectively until theend44 is stopped by means of a suitable stop.member 62 and the openingin the front end of the cabinet is sealed by said end 44. After the rackhas been loaded with material to be dried, both said rack and the framecarry ing it may be pushed back with the cabinet out of the way, thedrying operation be ginning as soon as the heating apparatus is turnedon. Heated air will then circulate in the heating chamber 53 asindicated by the arrows in Fig. 2 thus heating the air in the drierproper by conduction and convection. The-moisture laden air is extractedthrough the vent 55-.

It is obvious that the side walls may be made of any desired length bymerely adding the proper number of intermediate sections 28, while thelengths of the other parts are made to conform to the length of saidwalls. It will also be understood that any number of racks trolleys andframes may be placed sideby side in the same cabinet within the limitsof the widths thereof so that different steps in the loading, dry ingand unloading operations may proceed simultaneously.

It will thus be seen that there is provided apparatus in which theseveral objects of this invention are achieved and which is well adaptedto meet the conditions of practical use.

As various possible embodiments might be made of the above invention andas various changes might be made in the embodiment above set forth, itis to be understood that all matter herein set forth or shown in theaccompanying drawings is to be interpreted as illustrative and not inalimiting sense.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a drying cabinet, a rear wall, sectional sidewalls, atop, said rear and side walls and top each comprising two sheetsarranged with an air space between them, joints connecting said sheetsin such manner as to provide grooves in said side walls for thereception of said rear wall, and means at the upper corner edges of saidcabinet having grooves for the reception of said top and for connectingsaid top to said walls.

2. In a drying cabinet, sheet metal side walls, a rear wall and a topeach having air spaces therein, and grooved joints in connection withsaid side walls, and at the tops of all of said'walls whereby said topand walls may be fitted together.

3. In a drying cabinet, a substantially rectangular wall membercomprising a pair of spaced sheets having an air space therebetween, andinterlocking substantially U- shaped vertically disposed edge seamsconnecting said sheets and forming the edge surfaces of said prismaticwall member.

4. In a drying cabinet, a side wall comprising a rear end section, afront end section, and intermediate sections, each of sald sectionscomprising a pair of spaced sheets, joints at the ends of said sheetsformed by bringing each of a pair of said sheets into contact with eachother, and interlocking the ends thereof.

5. In a drying cabinet, a top compnslng a pair of spaced sheets,interlocking substantially U-shaped edge seams connecting said sheetsand forming the edge surfaces thereof, and a distance piece insertedbetween the ends of and bent over the edges of the outside surfaces ofsaid sheets.

6. In a drying cabinet, side walls, a rear Wall, a. top and means forconnecting said walls and said top comprising an outer angle and a Z-barhaving one flange secured to the inside of the downwardly extending legof saidangle whereby a pair of grooves is provided, one of which isadapted to receive said top and the other of which is adapted to receivesaid walls.

7. In a drying cabinet, a rear wall having an air space therein, sidewalls having air spaces therein and grooves at the rear ends thereofinto which said rear wall is adapted to be fitted, and means for tyingsaid walls together comprising a strap havlng downwardly bent terminalhooks and hook catches secured to said side walls adapted to receivesaid hooks.

8. In a drying cabinet, a rear wall comprising a pair of spaced sheetshaving an air space therebetween, and interlocking edge seams connectingsaid sheets and forming the ed e. surf. see of said wall, side wallseach comprising a rear end section, a front end section and intermediatesections, each of said sections comprising a pair of spaced sheets,joints at the ends of said sheets interlocking said sheets together atthe ends thereof, means for fastening said sections together, and a topcomprising a pair of spaced sheets, interlocking edge seam connectingsaid sheets at the sides'thereof, and a distance piece inserted betweenthe ends of and bent over the edges of the outside surfaces of saidsheets at the ends thereof.

9. In a drying cabinet, a rear wall comprising a pair of spaced sheetshaving an air space therebetween, and interlocking edge seams connectingsaid sheets and forming the edge surfaces of said wall, side walls eachcomprising :a rear end section, a front end section and intermediatesections, each.

of said sections comprising a pair of spaced sheets, joints at the endsof said sheets interlocking said sheets together at the ends thereof,means for fastening said sections together, and a top comprising a pairof spaced sheets, interlocking edge seams connecting said sheets at thesides thereof, and a distance piece inserted between the ends of andbent over the edges of the outside surfaces of said sheets at the endsthereof, and means for connecting said walls and said top comprising anouter angle and a Z-bar having one flange secured to the inside of thedownwardly extending leg f said angle whereby a pair of grooves isprovided, one of which is adapted to receive said top and the other ofwhich is adapted to receive said walls.

10. In a drying cabinet, a rear wall comprising a pair of spaced sheetshaving an air space therebetween, and interlocking edge seams connectingsaid sheets and forming.

the edge surfaces of said wall, side Walls each comprising a rear endsection, a front end section and intermediate sections, each of saidsections comprising a pair of spaced sheets, joints at the ends of saidsheets interlocking said sheets together at the ends thereof, means forfastening said sections together, and a top comprising a pair of spacedsheets, interlocking edge seams connecting said sheets at the sidesthereof, and a distance piece. inserted between the ends of and bentover the edges of the outside surfaces of said sheets at the endsthereof, and

'means for tying said walls together comprising a strap havingdownwardly bent terminal hooks, and hook catches adapted to receive saidhooks secured to saidside walls.

11. Ina drying cabinet, at rear wall comprising a pair of spaced sheetshaving an air space therebetween, and interlocking edge seamsconnecting. said sheets and forming the edge surfaces of said wall, sidewalls each comprising a rear end section, a front end section andintermediate sections, each of said sections comprising a pair of spacedsheets, joints at the ends of said sheets interlocking said sheetstogether at the ends thereof, means for fastening said sectionstogether, and a top comprising a pair of spaced sheets, interlockingedge seams conmeeting said sheets at the sides thereof, and

a distance piece inserted between the ends of and bent over the edges ofthe outside sur- 10 faces of said sheets at the ends thereof, and meansfor tying said Walls together.

Signed at the city of New York, in the county of New York and State ofNew York, this first day of April, 1921.

' JULIUS JUDELSON.

